Does CORPSCON convert from / to the WGS 84 datum?
No, CORPSCON does not convert from / to the WGS 84 datum. For most applications that CORPSCON is used for, NAD 83 is close enough. TEC has developed a program called GeoTrans which the National Imagery and Mapping Agency (NIMA) now maintains. GeoTrans transforms between local geodetic datums and WGS 84.